John a



(No Model.)

J. A. KIENARDT.

BED SPRING.

Patented May 8, 1883.

IN\/ EN'T u, PETERS, Phob-Lhhugnphcr. Washingion. u c.

1 UNITED STATES PATENT OFFICE.

JOHN KIENARDT, OF DAYTON, OHIO, ASSIGNOR OF TWO-THIRDS TO FRANK WOGAMAN AND WILLIAM F. PATTERSON, BOTH OF SAME PLACE.

BED-SPRING.

SPECIFICATION forming part of Letters Patent No. 277,136, dated May 8, 1883.

Application filed March 21, 1883.

. which will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawing, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to the ordinary coneshaped spirally-coiled spring used for bedsprings; and it consists of the manner of interlocking separatesprings and attaching the same to the slat. The objects are to conveniently interlock the springs and provide intermediate support, and .to fasten the springs in a fixed position to the slats. I attain these objects by the mechanism illustrated in the accompanying drawing, which is a top view of a pair of springs.

A A are a pair of cone-shaped spiral coils with the vertex at the bottom, and are manufactured of suitable wire.

At 0 is represented the lower end of the wire, which is bent upon itself and downward to have a bearing against the side of the slat, and is held to the slat by a screw, as shown to the right.

(No model.)

B is the ordinary wooden slat, which is supported from the side rails of a bedstead. To the right the top coil is bent downwardly and outwardly, and to the left it has a double curve, terminating in a T-sha-ped loop, the free end being hooked over the next coil beneath to support the same. The loop is dropped into the notch of its :fellow, and thus are the pairs attached together. This forms a convenient means forattachment and a wide intermediate bearing between the spiral coils of the respect ive springs.

Having fully described my invention, what I claim, and desire. to secure by Letters Patent, 1s-

1. The cone-shaped spirally formed bedspring having a notch on one side and a projection on the other, terminating in a loop to effect an attachment with alike spring, substantially as set forth.

2. Acone-shaped spirally-formed bed spring having a loop at vertex .with a downwardlybent end, and screw G, in combination with a bed-slat, substantially asset forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

JOHN A. KIENARDT: 

